An Acetic-Acid Type Climax Community and its Changes Aroused by COD/SO42- Ratio in an Acidogenic Sulfate-Reducing Reactor

Abstract:

Article Preview

The objective of this study is to investigate the microbial community and its characteristics changes aroused by the ratios of COD/SO42- in the acidogenic-phase reactor of two-phase anaerobic process. A continuous-flow lab-scale test was conducted in an acidogenic sulfate-reducing reactor with molasses wastewater as sole organic carbon source and sodium sulfate as the electron acceptor. The experimental results showed that Acetic-acid Type Microbial Metabolism resulted in the formation of An Acetic-acid Type Climax Community. The change of the COD/SO42- ratio caused an ecological succession from a stable climax community at moderate and high COD/SO42- ratios to a sub-stable climax community at a lower COD/SO42- ratio. But Acetic-acid Type Microbial Metabolism kept unchanged during this course, which indicated the stability of Acetic-acid Type Climax Community. The Acetic-acid Type Microbial Metabolism and Acetic-acid Type Climax Community were of typical characteristics in the acidogenic sulfate-reducing reactor.

Info:

Periodical:

Edited by:

Barry Tan

Pages:

217-223

DOI:

10.4028/www.scientific.net/AMM.108.217

Citation:

H. X. Bao et al., "An Acetic-Acid Type Climax Community and its Changes Aroused by COD/SO42- Ratio in an Acidogenic Sulfate-Reducing Reactor", Applied Mechanics and Materials, Vol. 108, pp. 217-223, 2012

Online since:

October 2011

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.